The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
Mar. 03, 2005
John M. Rosenbaum, Richmond, CA (US);
Brent K. Lok, San Francisco, CA (US);
Joseph M. Pudlak, Vallejo, CA (US);
James N. Ziemer, Martinez, CA (US);
Robert J. Farina, Richmond, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Brent K. Lok, San Francisco, CA (US);
Joseph M. Pudlak, Vallejo, CA (US);
James N. Ziemer, Martinez, CA (US);
Robert J. Farina, Richmond, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
Blended lubricant base oils and blended finished lubricants comprising ≧70 weight percent Fischer-Tropsch derived lubricant base oils comprising ≧6 weight % molecules with monocycloparaffinic functionality and less than 0.05 weight % molecules with aromatic functionality; at least one polyalphaolefin lubricant base oil with a kinematic viscosity at 100° C. greater than about 30 cSt and less than 150 cSt are provided. These blended lubricant base oils and blended finished lubricants exhibit superior friction and wear properties, in addition to other highly desired properties. Also provided are processes for making these blended lubricant base oils and blended finished lubricants.